Drill-rod clamp.



H. BURSEWEIDE.

DHILLROD CLAMP.

APPLICATION FILED 1uNE24. 191s.

l l I g 4, jmum HERMAN' BURSEWEIDE, 0F KAUKAUNA, WISCONSIN.

DRILL-ROD CLAMP.

Specication of Letters Patent.

Patented Feb. 25, 1919.

Application led J une 24, 1918. Serial No. 241,625.

`To all whom t may concern Be it known that I, HERMAN Bunsnwnron, acitizen of the United States, residing at Kaukauna, in the county ofOutagamie and State of Wisconsin, have invented certain new and usefulImprovements in Drill-Rod Clamps, of which the following is aspecification.

This invention relates to improvements in drill rod clamps and itsobject is to provide means for supporting pipes, rods, posts or thelike. The device is adapted more particularly for application to pumprods to facilitate raising or lowering of the same into wells or drillholes. A further object is to provide a device of this type that whenapplied to the pipe or rod'will sustain itself in such engagement, thatis readily adjustable longitudinally7 of such pipe or rod, that can bemade to grip the same at one or two points as desired and that can beinstantly released from such engagement. A further object is to providea device of this type adapted to operate with the maximum etliciency,that is simple in construction, of few parts, and that is cheap tomanufacture.

With the foregoing and other objects in view the invention consists inthe combination and arrangement of parts to be hereinafter fullydescribed, pointed out in the appended claims and illustrated in theaccompanying drawing which forms a part of this specification and inwhich- Figure 1 is a view of Vmy improved drill rod clamp in sideelevation illustrating its application.

Fig. 2 is a top plan view of Fig. 1.

Like reference characters denote corresponding parts in both views.

The device comprises a frame or body portion having one closed roundedend 1 and the diverging sides 2, 3, the side 2 terminating in the curvedstationary j aw 4 and the side 3 at its free end having the outwardlybent extensiony 5, said extension being disposed substantially at rightlangles to the side proper and termina-ting in the guide-shoe 6 adaptedto engage with the pipe or rod under operation. I provide a movable jaw7 having the handle or finger-piece S and formed with the perforations 9to receive the bolt 10 whereby it may be adjustably secured to the frameside 2 for coperation with the stationary jaw 4.

A bracket 11 is adjustably secured by the screw bolt 12 to the outerside of the frame side 3, said bracket being formed with the guide lips13 adapted to embrace said frame side, said bracket having one portionbent parallel to the extension 5, said bent portion carrying the setscrew 14 adapted for engagement with the work. VA brace 15 is secured tothe. bracket 11 to give rigidity to the same. In operation thestationary jaw 4 and movable jaw 7 are applied to the pipe or rod 15a,the rod being rmly clamped between said members, likewise the shoe 6 isapplied to the rod and the set screw 14 may be moved into frictionalengagement with the rod. A firm purchase at two points is now had uponthe rod and the operator may raise or lower the same by using the framesides 2, 3 as a handle. The clamp may be rested upon the ground with therod in the drill hole, if desired, without danger of the rod slipping ordropping to the bottom of the hole.y The clamp and rod may be readilydisengaged by manual rotation of the screw 14 and by movement of the jaw7 out of engagement with the rod.

What is claimed is l. In a drill rod clamp, a frame having one closedend and sides diverging from said end, one of said sides terminating ina stationary j aw, a movable jaw adjustably pivoted to said frame sidefor cooperation with said stationary jaw, the other of said frame sideshaving an outwardly bent extension, a guide shoe terminating saidextension, a bracket adjustably secured to the last named frame side,and work-engaging means carried by said bracket.

2. In a drill rod clamp, a frame having one closed end and sidesdiverging from said end, one of said sides terminating in a stationaryjaw disposed in the plane of said side, a movable jaw adjustably pivotedto said frame side for cooperation with said stationary jaw, the otherof said frame sides my own I have hereto affixed my signature in hzlwngan outwardly belnt eztenson, a guide the presence of tWo subscribingWitnesses. s oe terminating saic sic e extension a y bracket adjustablysecured to the last named HERMAN BURSEWEIDE' 5 :Emme side, and a`setScrew carried by said I/Vitnesses:

bracket. PETER WEYENBERG,

In testimony that I claim the foregoing as NICHOLAS DERCKS.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

